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Heart|Lab Grown|IGI

1.55ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG634457454

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG634457454

Diamond specifications and retailer prices

From $605 SGD
$473 USD
As of October 30, 2026
Save $2,203 SGD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,807 SGD at Brilliance · As of November 1, 2026
View at Brilliance

About this 1.55ct lab-grown heart diamond

This 1.55ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG634457454 or 634457454. Listed at 17 retailers as of October 30, 2026, with prices from $605 to $2,807, a $2,203 spread on the same certified stone. Brilliance lists it at $2,807. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634457454
Dimensions8.11 × 7.08 × 4.62 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.11 mm7.08 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634457454
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 57.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,807 SGD|Low: $482 SGD|High: $3,045 SGD|Avg: $1,428 SGD|-7.8%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 13$605 SGD
Retailer 5$676 SGD
Retailer 4$678 SGD
Retailer 14$750 SGD
Retailer 10$933 SGD
Retailer 12$1,007 SGD
Retailer 7$1,245 SGD
Retailer 9$1,290 SGD
Retailer 6$1,429 SGD
Retailer 11$1,689 SGD
Retailer 8$1,748 SGD
Retailer 3$2,412 SGD
Retailer 2$2,757 SGD
Brilliance$2,807 SGD

45 data points across 14 retailers

17 retailers$605 SGD to $2,807 SGD

A
Cheapest Retailer
-
$605 SGD
$473 USD
A
Retailer 2
-
$676 SGD
$529 USD
View
Final sale: no returns
A
Retailer 3
-
$678 SGD
$530 USD
View
Retailer 4
-
$750 SGD
$587 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$750 SGD
$587 USD
View
A
Retailer 6
-
$933 SGD
$730 USD
View
A
Retailer 7
-
$1,007 SGD
$788 USD
View
A
Retailer 8
-
$1,245 SGD
£767 GBP
View
A
Retailer 9
-
$1,290 SGD
ZAR 16,296 ZAR
View
A
Retailer 10
-
$1,429 SGD
$1,118 USD
View
B+
Retailer 11
-
$1,689 SGD
$1,321 USD
View
B+
Retailer 12
-
$1,748 SGD
A$2,103 AUD
View
B+
Retailer 13
-
$2,412 SGD
$1,887 USD
View
B+
Retailer 14
-
$2,450 SGD
$1,916 USD
View
B
Retailer 15
-
$2,641 SGD
$2,066 USD
View
B+
Retailer 16
-
$2,757 SGD
£1,698 GBP
View
Most Expensive
B
Brilliance
D24947441 · Nov 1
$2,807 SGD
$2,196 USD
View
16 more retailers have this diamond
Prices start from $605 SGDSave up to $2,203 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.55ct Heart
$605 SGD